6 ms·

One of the early customers was the European Centre for Medium-Range Weather Forecasts, so, wild guess, they probably used it for medium-range weather forecasts.

ithkuil 3y ago
> they probably used it for medium-range weather forecasts in europe
- defrost 3y ago
  FWiW Australia used a CDC Cyber 205 for occassional weather modelling and other mathematical work in the early 1980s. ( There was a seperate dedicated weather computer, this one was used for 'other' jobs like speculative weather modelling, monster group algebraic fun, et al.) https://en.wikipedia.org/wiki/CDC_Cyber https://en.wikipedia.org/wiki/CDC_Cyber The UK was the first customer: In 1980, the successor to the Cyber 203, the Cyber 205 was announced. The UK Meteorological Office at Bracknell, England was the first customer and they received their Cyber 205 in 1981.
- pietjepuk88 3y ago
  I thought the ECMWF models were (and always have been) global?
- jorvi 3y ago
  > European Centre for Medium-Range Weather Forecasts
- checkyoursudo 3y ago
  Only centred on Europe.
  - ithkuil 3y ago
    Fwiw I meant "made in Europe" (as opposed as models of Europe)
fastneutron 3y ago
Numerically, I’m currently what this would have looked like. I’m talking about the governing equation set, discretization methods, data, etc. It would be a fun project to try and implement a toy model like that.
- magicalhippo 3y ago
  > It would be a fun project to try and implement a toy model like that. If you really want a challenge, do it using pen, paper and a slide rule, like in the old days[1]. Just make sure to apply appropriate smoothing of the input data first[2]. [1]: https://www.smithsonianmag.com/history/how-world-war-i-changed-weather-good-180963360/ https://www.smithsonianmag.com/history/how-world-war-i-chang... [2]: https://arxiv.org/abs/2210.01674 https://arxiv.org/abs/2210.01674

ithkuil 3y ago

> they probably used it for medium-range weather forecasts in europe

defrost 3y ago
FWiW Australia used a CDC Cyber 205 for occassional weather modelling and other mathematical work in the early 1980s. ( There was a seperate dedicated weather computer, this one was used for 'other' jobs like speculative weather modelling, monster group algebraic fun, et al.) https://en.wikipedia.org/wiki/CDC_Cyber https://en.wikipedia.org/wiki/CDC_Cyber The UK was the first customer: In 1980, the successor to the Cyber 203, the Cyber 205 was announced. The UK Meteorological Office at Bracknell, England was the first customer and they received their Cyber 205 in 1981.
pietjepuk88 3y ago
I thought the ECMWF models were (and always have been) global?
jorvi 3y ago
> European Centre for Medium-Range Weather Forecasts
checkyoursudo 3y ago
Only centred on Europe.
- ithkuil 3y ago
  Fwiw I meant "made in Europe" (as opposed as models of Europe)

fastneutron 3y ago

Numerically, I’m currently what this would have looked like. I’m talking about the governing equation set, discretization methods, data, etc. It would be a fun project to try and implement a toy model like that.

magicalhippo 3y ago
> It would be a fun project to try and implement a toy model like that. If you really want a challenge, do it using pen, paper and a slide rule, like in the old days[1]. Just make sure to apply appropriate smoothing of the input data first[2]. [1]: https://www.smithsonianmag.com/history/how-world-war-i-changed-weather-good-180963360/ https://www.smithsonianmag.com/history/how-world-war-i-chang... [2]: https://arxiv.org/abs/2210.01674 https://arxiv.org/abs/2210.01674